Implement on-chain mechanism to update distribution reward formulas

[Levi-Ojukwu]

Description:

The distribution contract has hardcoded reward constants (e.g., HALF_TOKEN = 5_000_000). Governance should be able to adjust these.

Why it matters: Hardcoded values don't adapt to changing market conditions.

Acceptance Criteria:

• Make reward parameters configurable (not hardcoded)
• Add governance proposal actions for parameter updates
• Add timelock for changes
• Add tests

Relevant Files: contracts/iln_distribution/src/lib.rs, contracts/iln_governance/src/lib.rs

---

[Nife-tanny]

@Nife-tanny has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I would like to work on this issue.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Nife-tanny to this issue.

[Favouratambi]

@Favouratambi has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I'd be happy to contribute to this. I'll implement governance-controlled reward parameters to replace the hardcoded constants, add timelocked proposal actions for secure updates, include comprehensive tests for the new flow, and ensure the changes remain backward-compatible and well documented.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Favouratambi to this issue.

[Yilkash]

@Yilkash has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Can i work on this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Yilkash to this issue.

[drips-wave]

Congratulations, @Yilkash! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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[drips-wave]

This issue has been completed by @Yilkash as part of the Stellar Wave Program's 7th Wave 🥳

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